844
FNCA52 TJSJ 261930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST MON OCT 26 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-270800-
SOUTHEAST COASTAL PLAINS-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 40 40 40
TEMP (24H TREND) 75 (-2) 90 (+1) 74 90
RH % (24H TREND) 93 (+3) 54 (-7) 94 52
WIND 20FT/EARLY(MPH) SE 10 E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 9 SE 11 NE 8 SE 11
MIXING HGT(FT-AGL/MSL) 4330 4430
TRANSPORT WND (MPH) SE 14 E 13
VENT RATE (KT-FT) 51960 48730
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-270800-
SOUTHERN HILLS-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 40 40 40
TEMP (24H TREND) 71 (-4) 88 (+3) 71 88
RH % (24H TREND) 98 (+5) 63 (-7) 97 60
WIND 20FT/EARLY(MPH) SE 10 SE 11 E 9 E 10
WIND 20FT/LATE(MPH) SE 10 SE 11 E 8 SE 10
MIXING HGT(FT-AGL/MSL) 4860 5140
TRANSPORT WND (MPH) SE 14 E 10
VENT RATE (KT-FT) 58320 46260
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-270800-
NORTH COASTAL PLAINS-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 60 20 20
TEMP (24H TREND) 74 (-3) 92 (+1) 73 91
RH % (24H TREND) 96 (+4) 58 (-6) 96 59
WIND 20FT/EARLY(MPH) SE 10 SE 12 SE 10 SE 11
WIND 20FT/LATE(MPH) SE 10 SE 13 SE 8 E 16
MIXING HGT(FT-AGL/MSL) 5230 4550
TRANSPORT WND (MPH) SE 12 E 12
VENT RATE (KT-FT) 52300 45500
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-270800-
NORTHERN HILLS-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 70 20 40
TEMP (24H TREND) 72 (-2) 91 (+1) 71 89
RH % (24H TREND) 98 (+3) 60 (-3) 97 60
WIND 20FT/EARLY(MPH) SE 9 SE 9 SE 8 SE 9
WIND 20FT/LATE(MPH) SE 6 SE 11 SE 5 E 12
MIXING HGT(FT-AGL/MSL) 5110 5220
TRANSPORT WND (MPH) SE 10 E 9
VENT RATE (KT-FT) 45990 41760
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-270800-
WEST COAST-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 40 50
TEMP (24H TREND) 74 (-2) 92 (+1) 73 92
RH % (24H TREND) 97 (+5) 63 (-4) 96 61
WIND 20FT/EARLY(MPH) SE 16 SE 14 SE 13 SE 11
WIND 20FT/LATE(MPH) SE 14 SE 14 E 11 SE 11
MIXING HGT(FT-AGL/MSL) 4650 4380
TRANSPORT WND (MPH) SE 17 E 9
VENT RATE (KT-FT) 69750 35040
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-270800-
EASTERN INTERIOR-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 40 30
TEMP (24H TREND) 72 (-4) 90 (+2) 72 89
RH % (24H TREND) 98 (+5) 60 (-5) 97 59
WIND 20FT/EARLY(MPH) SE 12 SE 12 SE 11 SE 10
WIND 20FT/LATE(MPH) SE 11 SE 12 SE 10 SE 11
MIXING HGT(FT-AGL/MSL) 5460 5630
TRANSPORT WND (MPH) SE 14 E 10
VENT RATE (KT-FT) 65520 50670
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-270800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 40 40
TEMP (24H TREND) 71 (-3) 86 (+3) 70 86
RH % (24H TREND) 100 (+3) 63 (-8) 100 63
WIND 20FT/EARLY(MPH) SE 10 SE 11 SE 9 SE 9
WIND 20FT/LATE(MPH) SE 9 SE 11 SE 8 E 10
MIXING HGT(FT-AGL/MSL) 4080 3960
TRANSPORT WND (MPH) SE 15 E 10
VENT RATE (KT-FT) 53040 35640
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-270800-
CENTRAL MOUNTAIN RANGE-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 60 30 50
TEMP (24H TREND) 69 (-4) 88 (+5) 68 87
RH % (24H TREND) 99 (+4) 64 (-7) 98 62
WIND 20FT/EARLY(MPH) SE 11 SE 11 SE 8 SE 8
WIND 20FT/LATE(MPH) SE 9 SE 11 SE 6 E 8
MIXING HGT(FT-AGL/MSL) 5210 6080
TRANSPORT WND (MPH) SE 14 E 7
VENT RATE (KT-FT) 62520 36480
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-270800-
CAYEY MOUNTAIN RANGE-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 40 40
TEMP (24H TREND) 71 (-3) 85 (+2) 71 85
RH % (24H TREND) 99 (+2) 66 (-5) 100 63
WIND 20FT/EARLY(MPH) SE 8 SE 9 SE 8 E 9
WIND 20FT/LATE(MPH) SE 8 SE 9 E 6 SE 9
MIXING HGT(FT-AGL/MSL) 4420 4610
TRANSPORT WND (MPH) SE 14 E 10
VENT RATE (KT-FT) 53040 41490
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-270800-
VIEQUES-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 30 30
TEMP (24H TREND) 77 (-3) 90 (0) 77 90
RH % (24H TREND) 88 (+1) 60 (-4) 88 59
WIND 20FT/EARLY(MPH) SE 14 SE 13 SE 12 E 12
WIND 20FT/LATE(MPH) SE 12 SE 13 SE 12 E 11
MIXING HGT(FT-AGL/MSL) 3130 3200
TRANSPORT WND (MPH) SE 16 E 14
VENT RATE (KT-FT) 43820 38400
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-270800-
CULEBRA-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30 30
TEMP (24H TREND) 79 (-2) 93 (+3) 78 91
RH % (24H TREND) 89 (+4) 57 (-9) 90 58
WIND 20FT/EARLY(MPH) SE 13 SE 12 SE 13 E 12
WIND 20FT/LATE(MPH) SE 12 SE 14 SE 12 E 11
MIXING HGT(FT-AGL/MSL) 3290 3320
TRANSPORT WND (MPH) SE 16 E 14
VENT RATE (KT-FT) 46060 39840
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-270800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 40 40 40
TEMP (24H TREND) 75 (-3) 92 (+2) 75 92
RH % (24H TREND) 96 (+6) 53 (-7) 96 51
WIND 20FT/EARLY(MPH) SE 16 SE 14 G23 E 13 E 13
WIND 20FT/LATE(MPH) E 14 SE 14 G23 E 12 SE 13 G21
MIXING HGT(FT-AGL/MSL) 4320 4460
TRANSPORT WND (MPH) SE 17 E 16
VENT RATE (KT-FT) 64800 62440
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-270800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30 30
TEMP (24H TREND) 77 (-3) 88 (+1) 76 88
RH % (24H TREND) 90 (+4) 65 (-5) 90 63
WIND 20FT/EARLY(MPH) SE 13 SE 14 SE 13 E 12
WIND 20FT/LATE(MPH) SE 13 SE 14 SE 12 E 11
MIXING HGT(FT-AGL/MSL) 3280 3300
TRANSPORT WND (MPH) SE 16 E 13
VENT RATE (KT-FT) 45920 36300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-270800-
ST CROIX-
330 PM AST MON OCT 26 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30 30
TEMP (24H TREND) 78 (-2) 91 (+3) 77 89
RH % (24H TREND) 92 (+2) 64 (-6) 92 64
WIND 20FT/EARLY(MPH) SE 12 SE 13 SE 12 E 12
WIND 20FT/LATE(MPH) SE 12 SE 13 E 12 E 11
MIXING HGT(FT-AGL/MSL) 4190 4300
TRANSPORT WND (MPH) SE 18 E 12
VENT RATE (KT-FT) 67040 43000
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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